初中条件状语从句(附答案)教学提纲

1、条件状语从句讲解及练习一、考点归纳4由连接词if或unless引导的状语从句叫做条件状语从句。(注意：在含有条件状语从句的复合句中，如果主句是一般将来时态，从句要用一般现在是“主将从现原则”。通常译作假如，如果，除非引导词：L常用引导词：if,unlessif引导词用法if引导的条件状语从句的用法，现在总结一下：if条件句不一般，几个要点记心间;条件句，放在前，逗号要放句中间。条件句表可能，主句多用将来时；条件句表事实，主句常用现在时。if引导的条件句有：真实条件句和非真实条件句两种：真实条件句：表示在某种条件下某事很可能发生。Eg：Ifyouaskhim,hewillhelpyou.如果你请

2、他帮忙，他会帮你的。Ifyoufailintheexam,youwilllethimdown.如果你考试不及格，你会让他失望的。Ifitrainstomorrow,wewongoonapicnic.如果明天下雨，我们就不去里予餐。注意：切记紧跟着if的那句话是从句。(2)非真实条件句是虚拟语气的一种，表示与事实相反，不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设，从句多用一般过去时或过去完成时。Eg:IfIwereyou,Iwouldinvitehimtotheparty.如果我是你，我会邀请他参加聚会。IwouldhavearrivedmuchearlierifIhadno

3、tbeencaughtinthetraffic.如果没有堵车,我会到的早一点儿。IfIwereyou,Iwouldgowithhim.如果我是你，我会和他一起去的。unless弓I导词用法固定搭配：unless=if.not除非，若不，除非在，的时候。Eg:Youwillfailtoarrivethereintimeunlessyoustartearlier.=Ifyoudonstartearlier,youwillfailtoarrivethereintime.如果你不早点动身，你就不能及时赶到那儿。Unlessitrains,thegamewillbeplayed.=Ifitdosentr

4、ain,thegamewillbeplayed.除非下雨，比赛将照常进行。Letsgooutforawalkunlessyouaretootired.d)=Ifyouarenottootired,letsgooutforawalk经典语句：Ifitdosentraintomorrow,wewillgotothezoo.条件状语从句就是用以表示在某种条件下，会”二、课堂练习I用所给词的适当形式填空1.Ifyou(feel)tired,you(have)tohavearest.Wherehe(see)thefilmifhe(have)time?Ifthere(be)fewertrees,there

5、(be)morepollution.He(dress)morecasuallyifhe(notwork)onweekends.IfMarcia(live)alone,she(keep)apetparrot.Lana(buy)anewdressiftheoldone(be)outofstyle.Thetwins(fight)ifthey(argue).I(have)abakesaleifI(need)moneyforeducation.Peter(send)meabeautifulsouvenirifhe(tour)Spain.IfMrGreen(say)Iamhard-working,mypa

6、rents(feel)glad.I(go)tothebeachifit(notrain)thisweek.they(have)amatchiftheP.E.teacher(be)busy?He(write)alettertohisgrandparentsifhe(get)hisreportcardthisweek.Ifshe(get)uplate,she(notcatch)theearlybus.Peter(major)inEnglishifhe(pass)theexamsinPekingUniversity.如果他到的晚了会发生什么事情？Whatifhelate?如果努力学习，你就会取得好成

7、绩。 TOC o 1-5 h z Ifyou,yougood.他如果看电视太久了，他的父母会不高兴。IfheTVtoomuch,hisparentsunhappy.如果我们为他组织生日聚会，大家都会来的。Everyoneifweabirthdaypartyhim.如果明天不下雨，我会和你一起去公园的。Ifittomorrow,Igototheparkyou.如果她睡过头了，就会旅游迟到的。She;thetripifshe.如果他有空，他会帮助你的。Ifhe,heyou.如果Tom考试不及格，他就没有机会上高中了。Tomhavethetogotothehighschoolifhetheexams

8、.你如果抄同学的作业就不能学好各门功课。Yougoodatallthesubjectsifyoutheotherstudentshomework.II.单项选择1.Ifyoutotheparty,youllhaveagreattime.A.willgoB.wentC.goD.goingItwillbealongtimePeterhiswork.A.since,hasfinishedB.after,finishesC.when,willfinishD.before,finishes.WhatwillfatherusfromJapan?A.takeB.bringC.carryD.makeWeifa

9、ngisfamouskites.A.forB.toC.onD.withIhertheanswerifsheme.A.cantell,willaskB.willtell,willaskC.wouldtell,askD.willtell,asks-Whatareyougoingtodotomorrow?-Wellgotothelibrarytomorrowifit_.A.isntraBin.rainC.wontrainD.doesntrainDoyouknowwhenhewillcomebacktomorrow?-Sorry,Idontknow.Whenheback,Illtellyou.A.co

10、mesB.willcomeC.comeD.maycomeWhatwillyoudoifyoutotheoldfolkshomevisit?A.goB.wentC.goingD.willgoIfIeatfood,Illbeveryfat.A.toomanyB.manytooC.toomuchD.muchtooIllgivethebooktohimifhe_herenextSunday.A.willcomeB.comesC.iscomingD.cameThereanEnglishfilminourschooltomorrow.A.isgoingtohaveB.willhaveC.isgoingtobeD.hasCouldyoutelluswhere？willthenextOlympicGamesheldthenextOlympicGameswillbeheldwouldthenextOlympicGamesbeheldthenextOlympicGameswouldbeheldWhenmymotherreturnedlastnight,Iabook.A.readB.amreadingC.wasr